- Replace the Guardianship through-model + self-referential M2M with a simple
is_guardian flag on Member. Guardians in a family look after the family's
dependents; guardians/dependents are now derived properties.
- Add Member.contact_email: own contact email, falling back to the linked
user's login email, so a linked member need not store their email twice.
- Update admin (is_guardian in list/filter/inline; drop guardianship inline).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Bernard Siebens
aa2c6329b9